It is to publish a consultant's report in two weeks time that proposes a second marina in the harbour boosting berths there to 2500 to cater for boating over the next 20 years.
If it goes ahead it would mean the single port of Dun Laoghaire would contain three quarters of the country's marina berths.
It is a success story in an other wise sorry tale of government neglect around the coast.
A single marina in La Rochelle, France has the same capacity as our entire Island. There are more berths in North Wales than there are here.
Living in Ireland means that you are less likely to own a boat than if you live in almost any other country in Europe.
One person in 172 owns a boat on the island – the European average is one in 46.
Up and down our coasts, facilities from slipways for all kinds of watersports to state–of–the–art marinas for larger craft, are either full to capacity, in private hands, in disrepair or non–existent.
But before anyone sheds a tear for a millionaire not having anywhere to park a yacht there is a hidden economic argument that Ireland’s lack of marine infrastructure is costing us all.
The marine leisure sector is capable of growing by around 30 per cent over the next three years - if the government and local authorities decide to unlock the potential that lies on the coast.
In the major sailing centres on Dublin Bay and Cork Harbour – representing 3,000 craft – all five marinas are full to capacity.
Even with its recent expansion to 820 berths, Dun Laoghaire's existing marina - the country's largest - will be full this time next year, and it is for this reason that the four yacht club commodores cautiously welcomed the study last week.
The clubs understand that in building Dun Laoghaire's international reputation as the 'Cowes of the Irish Sea', future capacity for growth is essential.
Dun Laoghaire harbour company is a commercial company and its interest in marine leisure is for profit. The first marina there was some 20 years in gestation to become an overnight success.
The second marina proposal - seen by by the Irish Times - produced by Fisher and Associates, a UK ports and marine leisure consultancy group, identifies an area to the east of the existing 800–berth facility and in front of the Royal St. George and National Yacht Clubs.
It would involve the construction of a new breakwater from St. Michael's Wharf and lead to the removal of existing 120 swinging moorings on the east bight and cater for 1300 boats.
The existing marina would also increase by up to 400 berths giving a total of 2500 berths.
For the plans to be advanced, a detailed evaluation is to be carried out this winter to examine the financial viability of the proposals. It will also consider car parking and a boat yard.
Far from being a done deal, the fact that it is on the table at all is a step-up from the current plight around the coast where - although 22 are in existence - a necklace of marinas is still to be built.
The west coast of Ireland has no marina facilities between Kilrush Creek, Co. Clare and Fahan, Co. Donegal.
On the east coast a new marina has got the green light in Greystones but gaps remain between Arklow and Kilmore Quay and on the south coast between Kilmore Quay and Cork Harbour.
The only way to achieve sustained marina growth around Ireland is to get government support for initiatives, but in spite of compelling arguments that investment in the sector can only yield positive results, the silence
from the cabinet table has been deafening.
Dun Laoghaire's latest plan must be held out as an example of what can be achieved but it is a single port. Government needs to dip its toe in the water and take a lead from one of its own commercial companies. Without its input, the fledgling marine tourism industry will continue to have a difficult berth.
